12 of 14Image
My advice here is two-fold. First, disable notification for any apps that you don’t care about by clicking on the individual apps and switching off Notification Center.
Second, control which apps are visible on the Lock Screen by switching off View in Lock Screen … the more you have showing, the more often your screen will flick into life, draining precious battery power.
Another possible battery-eating culprit in iOS 5 is Diagnostic & Usage data:
Settings > General > About > Diagnostics & Usage
Set this to Don’t Send.